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Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance
In equine dentistry, the physiological incisor occlusal surface is visually perceived as a plane with a distinct inclination to the head’s coronal plane, extending rostro-ventrally to caudo-dorsally. To better understand the formation of this inclined plane and its connection to dental wear, we inve...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10549988/ https://www.ncbi.nlm.nih.gov/pubmed/37799811 http://dx.doi.org/10.3389/fbioe.2023.1249316 |
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author | Sterkenburgh, Tomas Rudolf Hartl, Bettina Peham, Christian Nowak, Michael Kyllar, Michal Kau, Silvio |
author_facet | Sterkenburgh, Tomas Rudolf Hartl, Bettina Peham, Christian Nowak, Michael Kyllar, Michal Kau, Silvio |
author_sort | Sterkenburgh, Tomas Rudolf |
collection | PubMed |
description | In equine dentistry, the physiological incisor occlusal surface is visually perceived as a plane with a distinct inclination to the head’s coronal plane, extending rostro-ventrally to caudo-dorsally. To better understand the formation of this inclined plane and its connection to dental wear, we investigated the hypothesis that it arises from masticatory movements and the considerable distance between mandibular articular heads and the incisor occlusal surfaces, acting as the three points of support for the mandibles. Leveraging data from a large-scale clinical study involving static and dynamic orthodontic measurements in horses, we approximated the mandibular movement range where incisor occlusion and dental wear occur. By introducing and testing a segment coordinate system, we explored possible angular deviations from the occlusal plane caused by mandibular roll and pitch rotations during two lateral mandibular movement patterns, protrusion and retrusion. Theoretical biomechanical calculations and simulations confirmed the visual perception of the incisor occlusal surface as a plane. To further examine our assumptions, we employed a simple mechanical simulator to assess incisor normal occlusion and provoked malocclusions (diagonal, smile, and frown bite) by modifying temporomandibular joint (TMJ) movement patterns. The results from clinical investigations were corroborated by both the theoretical analysis and mechanical simulations, strengthening our understanding of the biomechanical basis behind the physiological incisor occlusal plane maintenance in horses. These findings have significant implications for equine dental health and contribute to a thorough understanding of TMJ dynamics. |
format | Online Article Text |
id | pubmed-10549988 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-105499882023-10-05 Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance Sterkenburgh, Tomas Rudolf Hartl, Bettina Peham, Christian Nowak, Michael Kyllar, Michal Kau, Silvio Front Bioeng Biotechnol Bioengineering and Biotechnology In equine dentistry, the physiological incisor occlusal surface is visually perceived as a plane with a distinct inclination to the head’s coronal plane, extending rostro-ventrally to caudo-dorsally. To better understand the formation of this inclined plane and its connection to dental wear, we investigated the hypothesis that it arises from masticatory movements and the considerable distance between mandibular articular heads and the incisor occlusal surfaces, acting as the three points of support for the mandibles. Leveraging data from a large-scale clinical study involving static and dynamic orthodontic measurements in horses, we approximated the mandibular movement range where incisor occlusion and dental wear occur. By introducing and testing a segment coordinate system, we explored possible angular deviations from the occlusal plane caused by mandibular roll and pitch rotations during two lateral mandibular movement patterns, protrusion and retrusion. Theoretical biomechanical calculations and simulations confirmed the visual perception of the incisor occlusal surface as a plane. To further examine our assumptions, we employed a simple mechanical simulator to assess incisor normal occlusion and provoked malocclusions (diagonal, smile, and frown bite) by modifying temporomandibular joint (TMJ) movement patterns. The results from clinical investigations were corroborated by both the theoretical analysis and mechanical simulations, strengthening our understanding of the biomechanical basis behind the physiological incisor occlusal plane maintenance in horses. These findings have significant implications for equine dental health and contribute to a thorough understanding of TMJ dynamics. Frontiers Media S.A. 2023-09-20 /pmc/articles/PMC10549988/ /pubmed/37799811 http://dx.doi.org/10.3389/fbioe.2023.1249316 Text en Copyright © 2023 Sterkenburgh, Hartl, Peham, Nowak, Kyllar and Kau. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Bioengineering and Biotechnology Sterkenburgh, Tomas Rudolf Hartl, Bettina Peham, Christian Nowak, Michael Kyllar, Michal Kau, Silvio Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
title | Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
title_full | Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
title_fullStr | Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
title_full_unstemmed | Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
title_short | Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
title_sort | temporomandibular joint biomechanics and equine incisor occlusal plane maintenance |
topic | Bioengineering and Biotechnology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10549988/ https://www.ncbi.nlm.nih.gov/pubmed/37799811 http://dx.doi.org/10.3389/fbioe.2023.1249316 |
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